{"product_id":"samsung-40t-21700-4000mah-35a-battery","title":"Samsung 40T 21700 4000mAh 35A Battery","description":"\u003cdiv id=\"shopify-section-template--23864015159606__main\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"template--23864015159606__main\" data-section-type=\"product\" data-section-settings='{\n  \"showShippingEstimator\": false,\n  \"showQuantitySelector\": true,\n  \"showPaymentButton\": false,\n  \"showInventoryQuantity\": true,\n  \"lowInventoryThreshold\": 0,\n  \"galleryTransitionEffect\": \"fade\",\n  \"enableImageZoom\": true,\n  \"zoomEffect\": \"outside\",\n  \"enableVideoLooping\": false,\n  \"productOptions\": [\"Title\"],\n  \"enableHistoryState\": true,\n  \"infoOverflowScroll\": true,\n  \"isQuickView\": false\n}'\u003e\n\u003cdiv class=\"container container--flush\"\u003e\n\u003cdiv class=\"product-block-list product-block-list--small\"\u003e\n\u003cdiv class=\"product-block-list__wrapper\"\u003e\n\u003cdiv class=\"product-block-list__item product-block-list__item--description\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card__section\"\u003e\n\u003cdiv class=\"rte text--pull\"\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh Nominal Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh energy density for extended runtime in demanding systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e35A Continuous Discharge:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineered to support sustained high-current applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21700 Cell Format:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLarger form factor improves thermal performance and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Top Terminal:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for battery pack assembly and professional integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable Lithium-Ion Chemistry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStable voltage delivery with long cycle life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp\u003eThe Samsung 40T 21700 lithium-ion battery is built for high-performance applications requiring both capacity and power. Offering a 4000mAh nominal capacity with a 35A continuous discharge rating, this cell delivers reliable energy output under heavy load conditions. Its flat top construction makes it suitable for protected battery packs and advanced power assemblies.\u003c\/p\u003e\n\u003ch4\u003eApplications \/ Uses\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eElectric mobility battery systems\u003c\/li\u003e\n\u003cli\u003ePower tool battery packs\u003c\/li\u003e\n\u003cli\u003eIndustrial energy storage solutions\u003c\/li\u003e\n\u003cli\u003eHigh-output portable equipment\u003c\/li\u003e\n\u003cli\u003eCustom lithium-ion battery assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSPECIFICATIONS\u003c\/h4\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer:\u003c\/td\u003e\n\u003ctd\u003eSamsung SDI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel:\u003c\/td\u003e\n\u003ctd\u003eINR21700-40T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Size:\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePositive Terminal:\u003c\/td\u003e\n\u003ctd\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Capacity:\u003c\/td\u003e\n\u003ctd\u003e4000mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Continuous Discharge:\u003c\/td\u003e\n\u003ctd\u003e35A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Voltage:\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Cut-Off Voltage:\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtected:\u003c\/td\u003e\n\u003ctd\u003eNo, unprotected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRechargeable:\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions:\u003c\/td\u003e\n\u003ctd\u003e21.1mm × 70.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. Weight:\u003c\/td\u003e\n\u003ctd\u003e66.8g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Specification Sheet:\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0721\/2761\/1190\/files\/samsung_40T.pdf?v=1715096343\" rel=\"noopener\" aria-describedby=\"a11y-new-window-message\" target=\"_blank\"\u003eSamsung 40T Datasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--23864015159606__custom_html_Cqj66r\" class=\"shopify-section\"\u003e\n\u003csection class=\"section\" data-section-id=\"template--23864015159606__custom_html_Cqj66r\" data-section-type=\"html\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"html rte\"\u003e\n\u003cdiv class=\"li-ion-warnings\"\u003e\n\u003ch3\u003e⚠ Important Safety Warnings\u003c\/h3\u003e\n\u003cp\u003eImproper handling or misuse of this lithium-ion battery can result in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFIRE, EXPLOSION\u003c\/strong\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTHERMAL RUNAWAY\u003c\/strong\u003e, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/18650battery.com\/pages\/lithium-ion-battery-safety-warnings\" target=\"_blank\"\u003eClick here\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto review the full safety guidelines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical Warning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNever carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended Use:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis battery is designed for integration into\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eprotected battery packs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBattery Management System (BMS)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProtection Circuit Board (PCB)\u003c\/strong\u003e. It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Runaway:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA chain reaction where heat from a failing battery causes further overheating, potentially leading to fire or explosion.\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCauses:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOvercharging, short circuits, physical damage, or exposure to high temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevention:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse a smart charger, avoid damage, and store batteries in a cool, dry place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage \u0026amp; Transport:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDo not use if the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePVC wrapper\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eterminal insulator\u003c\/strong\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecasing\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esmart charger\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003especifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProhibited Activities:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eDo not expose the battery to extreme heat, fire, or liquids.\u003c\/li\u003e\n\u003cli\u003eDo not short circuit, puncture, crush, or modify the battery.\u003c\/li\u003e\n\u003cli\u003eDo not charge or discharge beyond the manufacturer’s voltage range.\u003c\/li\u003e\n\u003cli\u003eDo not dispose of in regular trash—always recycle at approved facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf the battery overheats, emits smoke, or swells, move it to a non-flammable surface (e.g., sand or concrete) and stop use immediately. In case of fire, use a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eClass D fire extinguisher\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor sand. Do not use water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Amp Batteries","offers":[{"title":"Default Title","offer_id":51230313808150,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/5366\/3766\/files\/SAMSUNG-40T.webp?v=1776638242","url":"https:\/\/ampbatteries.com\/products\/samsung-40t-21700-4000mah-35a-battery","provider":"Amp Batteries","version":"1.0","type":"link"}